<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card>
            <!-- 搜索添加区 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" type="primary" @click="getUserList"></el-button>
                    </el-input>    
                </el-col>
                <el-col  :span="4"> 
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>                  
        </el-card>
        <!-- 用户列表区 -->
        <el-table :data="userlist" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="姓名" prop="username"></el-table-column>
            <el-table-column label="邮箱" prop="email"></el-table-column>
            <el-table-column label="电话" prop="mobile"></el-table-column>
            <el-table-column label="角色" prop="role_name"></el-table-column>
            <el-table-column label="状态">
                <!-- 作用域插槽 -->
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作" width="180px">
                <template slot-scope="scope">
                    <!-- 编辑用户 -->
                    <el-button type="primary" icon="el-icon-edit" size="mini"  @click="showEditFDialog(scope.row.id)"></el-button>
                    <!-- 删除用户 -->
                    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                    <!-- enterable自动隐藏 -->
                    <!-- 角色分配 -->
                    <el-tooltip effect = "dark" content="分配角色" placement="top" :enterable="false">
                        <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                    </el-tooltip>
                </template>
            </el-table-column>
        </el-table>
         <div class="block">
            <span class="demonstration"></span>
            <el-pagination @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </div>
        <!-- 添加用户对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible"
                width="50%" @close="addDialogClosed">
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo()">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配角色对话框 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%">
            <p>当前的用户:{{userInfo.username}}</p>
            <p>当前的角色:{{userInfo.role_name}}</p>
            <p>分配新角色:
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                    v-for="item in rolesList"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id">
                    </el-option>
                </el-select>
            </p>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        // 验证邮箱规则
        var checkEmail = (rule,value,cb) =>{
            const regemail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            
            if(regemail.test(value)){
                // 合法邮箱
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        // 验证手机号规则
         var checkMobile = (rule,value,cb) =>{
            const regmobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/  
            if(regmobile.test(value)){
                // 合法手机
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }
        return {
            // 获取用户列表的参数对象
            queryInfo:{
                query: '',
                // 当前页数
                pagenum: 1,
                // 当前每页显示多少条数据
                pagesize: 2
            },
            userlist :[],
            total:0,
            // 控制添加用户对话框的显示和隐藏
            addDialogVisible:false,
            // 添加用户表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            // 添加表单的验证规则对象
            addFormRules:{
                username:[{
                    required:true,
                    message:'请输入用户名',
                    trigger:'blur'
                },{
                    min:3,
                    max:10,
                    message:'用户名长度在3~10个字符之间',
                    trigger:'blur'
                }],
                password:[{
                    required:true,
                    message:'请输入密码',
                    trigger:'blur'
                },{
                    min:6,
                    max:15,
                    message:'密码长度在6~15个字符之间',
                    trigger:'blur'
                }],
                 email:[{
                    required:true,
                    message:'请输入邮箱',
                    trigger:'blur'
                },{
                    validator:checkEmail,trigger:'blur'
                }],
                 mobile:[{
                    required:true,
                    message:'请输入手机',
                    trigger:'blur'
                },{
                    min:6,
                    max:15,
                    message:'手机号在6~15个字符之间',
                    trigger:'blur'
                },{
                    validator:checkMobile,trigger:'blur'
                }]
                
            },
            // 控制修改用户对话框的显示和隐藏
            editDialogVisible:false,
            // 存放修改时，查询到的数据
            editForm:{},
            // 修改表单的验证规则对象
            editFormRules:{
                email:[{
                    required:true,
                    message:'请输入邮箱',
                    trigger:'blur'
                },{
                    validator:checkEmail,trigger:'blur'
                }],
                 mobile:[{
                    required:true,
                    message:'请输入手机',
                    trigger:'blur'
                },{
                    min:6,
                    max:15,
                    message:'手机号在6~15个字符之间',
                    trigger:'blur'
                },{
                    validator:checkMobile,trigger:'blur'
                }]
            },
            // 控制分配角色对话框的显示和隐藏
            setRoleDialogVisible:false,
            // 需要被分配角色的用户信息
            userInfo:{},
            // 分配权限时，获取的权限列表
            rolesList:[],
            // 已经选中的角色ID值
            selectedRoleId:''
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList() {
          const {data :res} = await this.$http.get('users',{params:this.queryInfo})
          if(res.meta.status !== 200) {
              return this.$message.error('获取用户列表失败')
            }else{
                this.userlist = res.data.users
                this.total = res.data.total
            }
        },
        // 监听pagesize改变
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值改变
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听switch开关状态的改变
        async userStateChange(userinfo){
           const {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status !== 200){
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error('更新状态失败')
            }
            this.$message.success('更新状态成功')
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        //点击按钮，添加新用户
        addUser(){
            // 预验证
            this.$refs.addFormRef.validate(async valid =>{
                if(!valid) return
                // 发起正式添加网络请求
                const {data: res} = await this.$http.post('users',this.addForm)
                if(res.data.status!== 201){
                    this.$message.error('添加用户失败')
                }
                this.$message.success('添加用户成功')
                // 隐藏添加用户的对话框
                this.addDialogVisible =false
                // 刷新用户列表
                this.getUserList()
            })
        } ,
        // 展示编辑用户
        async showEditFDialog(id){
            const {data :res} =await this.$http.get('users/' + id)
            if(res.meta.status !== 200){
                return this.$message.error('查询用户失败')
            }
            this.editForm = res.data
            this.editDialogVisible =true
        },
        // 监听修改用户对话框的关闭
        editDialogClosed(){
            // 重置表单
             this.$refs.editFormRef.resetFields()
        },
        // 编辑用户
        editUserInfo() {
            // 预验证
            this.$refs.editFormRef.validate(async valid => {
                if(!valid) return
                // 修改
             const {data:res} = await this.$http.put('users/' +this.editForm.id,{
                email:this.editForm.email,
                mobile:this.editForm.mobile
            })
            // 
              if(res.meta.status !== 200) {
                 return this.$message.error('更新用户信息失败')
            }
            // 关闭对话框
            this.editDialogVisible = false
            // 刷新数据列表
            this.getUserList()
            // 提示修改成功
            this.$message.success('修改成功')
            })
        },
        // 删除用户
        async removeUserById(id) {
          const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => {
            return err
        })
        // 如用户确定删除,则返回字符串confirm
        // 如果用户取消，则返回字符串cancel
        if(confirmResult !== 'confirm'){
            return this.$message.info('已取消删除')
        }
        const {data:res} = await this.$http.delete('users/'+id)
        if(res.meta.status !== 200){
            return this.$message.error('删除用户失败')
        }
        this.$message.success('删除成功')
        this.getUserList()
        },
        // 展示分配角色的对话框 
        async setRole(userInfo){
            console.log(userInfo.id);
            this.userInfo = userInfo
            console.log(this.userInfo.id);
            // 获取角色的列表
            const{data:res}=await this.$http.get('roles')
            if(res.meta.status !== 200){
                return this.$message.error('获取角色列表失败')
            }
            this.rolesList = res.data
            this.setRoleDialogVisible =true
        },
        // 点击按钮，分配角色
        // 取反
        async saveRoleInfo(){

            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色!')
            }

            console.log(this.selectedRoleId);
            console.log(this.userInfo.id);

            const{data:res} = await this.$http.put(`users
            /${this.userInfo.id}/role`,{rid:this.selectedRoleId})
            console.log(res.meta.status);

            if(res.meta.status !== 200){
                console.log(res.meta.status);
                return this.$message.error('更新角色失败')
              
            }
            this.$message.success('更新角色成功')
            this.getUserList()
            this.setRoleDialogVisible = false
        } 
        // 监听分配角色 关闭对话框时 清空内容
        //     setRoleDialogClosed(){
        //         this.selectedRoleId=''
        //         this.userInfo={}
        //     }
    }
}
</script>

<style scoped>
</style>